descry vs give someone the eye

descry

verb
  • To see, especially from afar; to discover (a distant or obscure object) by the eye; to espy; to discern or detect. 

  • To announce a discovery: to disclose; to reveal. 

give someone the eye

verb
  • To show flirtatious signs with one's eyes. 

How often have the words descry and give someone the eye occurred in a corpus of books? (source: Google Ngram Viewer )